[go: up one dir, main page]

EP1555662A3 - Module laser à deux longeurs d'ondes et dispositif de tête de lecture optique - Google Patents

Module laser à deux longeurs d'ondes et dispositif de tête de lecture optique Download PDF

Info

Publication number
EP1555662A3
EP1555662A3 EP05000584A EP05000584A EP1555662A3 EP 1555662 A3 EP1555662 A3 EP 1555662A3 EP 05000584 A EP05000584 A EP 05000584A EP 05000584 A EP05000584 A EP 05000584A EP 1555662 A3 EP1555662 A3 EP 1555662A3
Authority
EP
European Patent Office
Prior art keywords
light beam
laser module
pickup device
optical pickup
wavelength laser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05000584A
Other languages
German (de)
English (en)
Other versions
EP1555662A2 (fr
Inventor
Masakazu Ogasawara
Makoto Sato
Mamoru Miyachi
Yoshinori Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Publication of EP1555662A2 publication Critical patent/EP1555662A2/fr
Publication of EP1555662A3 publication Critical patent/EP1555662A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
EP05000584A 2004-01-14 2005-01-13 Module laser à deux longeurs d'ondes et dispositif de tête de lecture optique Withdrawn EP1555662A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004006540A JP2005203011A (ja) 2004-01-14 2004-01-14 ２波長レーザモジュール及び光ピックアップ装置
JP2004006540 2004-01-14

Publications (2)

Publication Number Publication Date
EP1555662A2 EP1555662A2 (fr) 2005-07-20
EP1555662A3 true EP1555662A3 (fr) 2007-11-07

Family

ID=34616860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05000584A Withdrawn EP1555662A3 (fr) 2004-01-14 2005-01-13 Module laser à deux longeurs d'ondes et dispositif de tête de lecture optique

Country Status (3)

Country Link
US (1) US20050169153A1 (fr)
EP (1) EP1555662A3 (fr)
JP (1) JP2005203011A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005074388A1 (ja) * 2004-02-09 2007-09-13 コニカミノルタオプト株式会社 光ピックアップ装置及び光情報記録及び／又は再生装置
US8174952B2 (en) 2005-11-21 2012-05-08 Ricoh Company, Ltd. Light source unit, optical detector unit, optical pickup device, and optical disk device
JP4925256B2 (ja) * 2006-01-20 2012-04-25 株式会社リコー 光源ユニット、光検出ユニット、光ピックアップ装置及び光ディスク装置
JP4683553B2 (ja) * 2005-11-21 2011-05-18 株式会社リコー 光源ユニット、光検出ユニット、光ピックアップ装置及び光ディスク装置
JP2009122455A (ja) * 2007-11-15 2009-06-04 Funai Electric Co Ltd 画像表示装置
US20090179138A1 (en) * 2008-01-16 2009-07-16 Visera Technologies Company Limited Soft mold and fabrication method thereof
JP2010153710A (ja) * 2008-12-26 2010-07-08 Sanyo Electric Co Ltd 半導体レーザ装置およびその製造方法
IT201700114962A1 (it) * 2017-10-12 2019-04-12 Automotive Lighting Italia Spa Attrezzatura di saldatura laser simultanea di un fanale automobilistico e metodo di saldatura laser simultanea di un fanale automobilistico
CN119093147B (zh) * 2024-08-30 2025-09-05 华中科技大学 一种可调谐双波长激光输出装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986996A (en) * 1996-03-11 1999-11-16 Seiko Epson Corporation Optical pick-up and optical recording system
JP2001184707A (ja) * 1999-12-28 2001-07-06 Sharp Corp 光ピックアップ及び光ディスクドライブ
US20030214898A1 (en) * 2002-04-15 2003-11-20 Tetsuya Ogata Optical pickup device and optical disk drive using the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029154A (en) * 1988-11-21 1991-07-02 Ricoh Company, Ltd. Optical reproducing apparatus
ATE289444T1 (de) * 2000-09-25 2005-03-15 Koninkl Philips Electronics Nv Optisches abtastgerät
KR100363172B1 (ko) * 2001-01-20 2002-12-05 삼성전자 주식회사 광검출기 밸런스 조정방법
CN1306318C (zh) * 2001-07-02 2007-03-21 古河电气工业株式会社 半导体激光组件与光放大器
JP2004355790A (ja) * 2003-05-08 2004-12-16 Sharp Corp ホログラム結合体およびその製造方法、ホログラムレーザユニットならびに光ピックアップ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986996A (en) * 1996-03-11 1999-11-16 Seiko Epson Corporation Optical pick-up and optical recording system
JP2001184707A (ja) * 1999-12-28 2001-07-06 Sharp Corp 光ピックアップ及び光ディスクドライブ
US20030214898A1 (en) * 2002-04-15 2003-11-20 Tetsuya Ogata Optical pickup device and optical disk drive using the same

Also Published As

Publication number Publication date
JP2005203011A (ja) 2005-07-28
US20050169153A1 (en) 2005-08-04
EP1555662A2 (fr) 2005-07-20

Similar Documents

Publication Publication Date Title
WO2007061515A3 (fr) Pile deplacee verticalement de diodes laser a emetteur unique multimodes
ATE304185T1 (de) Laser-strahlführungssystem mit bohr-modul
US11316321B1 (en) Safe laser light
US7822090B2 (en) Semiconductor device
EP2366549A3 (fr) Module laser à émission par la surface, dispositif de balayage optique et appareil de formation d'images
CN105388571B (zh) 具有多个信号通道的光发射器模块
WO2004007241A3 (fr) Phare a diodes electroluminescentes a lumiere blanche
TW201640210A (zh) 照明系統以及投影裝置
US10283929B2 (en) Semiconductor laser device and camera
EP1047051A3 (fr) Module lumineux et tête de lecture optique compatible utilisant celui-ci
EP1215783A3 (fr) Module laser à semi-conducteur, amplificateur optique et méthode de fabrication
WO2008143276A1 (fr) Dispositif d'émission de lumière laser
JP2012203392A5 (fr)
US10122146B2 (en) Thin laser package for optical applications
WO2004032292A3 (fr) Lasers a emission verticale haute performance
EP1555662A3 (fr) Module laser à deux longeurs d'ondes et dispositif de tête de lecture optique
TW200638645A (en) Semiconductor laser device
WO2004086578A3 (fr) Ameliorations apportees a des dispositifs optiques a semi-conducteur a cavite verticale
US10958039B2 (en) Optical module
ATE343861T1 (de) Festkörperlaser, gepumpt von einer laserdiode mit einem konvergenten bündel
WO2006081173A3 (fr) Reseaux de diodes laser a emission par la surface tres economiques
SE0202392D0 (sv) Mirrors for polymer waveguides
DE60007308D1 (de) Innentrommel-aufzeichnungsgerät mit mehreren strahlen mit mehreren wellenlängen
EP1467360A4 (fr) Capteur optique
EP1253686A3 (fr) Dispositif de conversion de longueur d'onde

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080508

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566